function innaData() {
	if(document.form.odblokujData.checked == true) {
		document.form.dataWyst.disabled = false;
	} else {
		document.form.dataWyst.disabled = 'disabled';
	}
}


function zeruj(el){
   if(el.value=="brak"){
      el.value = "";
   }
}

function uzupelnij(el) {
	if(el.value=="") {
	  el.value="brak";
	}
}